LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2018 >> Trax Premier, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Engine Controls And Fuel - 1.4L (LE2) - Diagnostic Information And Procedures (P0325-P2635) And Symptoms) >> Diagnostic Information and Procedures >> DTC P0325, P0327, or P0328 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine Running
  2. Verify DTC P0325, P0327 or P0328 is not set.
    • If the DTC is set 

      Refer to Circuit/System Testing.

    • Go to next step: If the DTC is not set 
  3. Verify the B68 Knock Sensor mounting bolt is properly tightened. Refer to Fastener Specifications .
    • If not tightened to the correct specification 

      Repair a necessary.

    • Go to next step: If tightened to the correct specification 
  4. Verify the scan tool parameters listed below display No while moving the related harnesses and connectors of the B68 Knock Sensor.
    • Cylinder 1 Knock Detected
    • Cylinder 2 Knock Detected
    • Cylinder 3 Knock Detected
    • Cylinder 4 Knock Detected
    • If No is not displayed 

      Repair the wiring harness or connectors.

    • Go to next step: If No is displayed 
  5. Operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
  6. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

    • Go to next step: If the DTC does not set 
  7. All OK.
scientia non olet · About LEMON Manuals